Ground-Level Fire Suppression Tank for EV Charging Stations
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Solution Overview
Problem
Existing fire suppression systems, such as sprinklers, are ineffective in quickly detecting and extinguishing fires at electric vehicle charging stations due to their inability to pinpoint the ignition source and limitations in water distribution, particularly when the battery fire causes thermal runaway.
Innovation Solution
A fire suppression tank specifically designed for electric vehicle charging stations, which includes a quadrilateral frame-shaped embedded groove and a gas injection type multi-wall tube that inflates to surround the vehicle, along with penetration holes equipped with spray nozzles to rapidly fill the tank with water and submerge the battery, thereby stabilizing it and extinguishing the fire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sprinklers are installed on the ceiling to cover the parking lot, then the fire suppression area is improved, but the speed of fire detection and extinguishing is insufficient and water cannot be intensively sprayed toward the ignition point
Solution Approach 1:
Instead of placing the water spraying device on the ceiling (conventional approach), the patent inverts the approach by placing the fire suppression tank on the ground level. This allows the spray nozzles to be positioned at the same level as the battery, enabling intensive water spraying directly toward the ignition point and dramatically improving fire detection and extinguishing speed.
Solution Approach 2:
The patent applies local quality by concentrating water spraying capability at the specific location where fire occurs (ground level near the battery). The fire suppression tank is positioned to directly surround the vehicle, and spray nozzles are strategically placed to intensively spray water toward the battery, providing localized intensive fire suppression rather than general area coverage.
2Area of stationary object
If sprinklers are used for fire suppression, then the fire suppression area is covered, but the water quantity available for continuous spraying is limited
Solution Approach 1:
The patent extracts the water storage function from the conventional sprinkler system by introducing a dedicated fire suppression tank with large water storage capacity. This separate tank is specifically designed to hold sufficient water for continuous spraying operations, decoupling the water storage function from the ceiling-mounted sprinkler system and enabling prolonged intensive water spraying.
Solution Approach 2:
The fire suppression tank is pre-filled with a large quantity of water before fire occurs. This preliminary preparation ensures that when fire detection occurs, there is sufficient water already available in the tank for continuous intensive spraying operations without being constrained by the limited water supply of conventional sprinkler systems.
3Difficulty of detecting and measuring
If a separate fire suppression system is installed in small spaces like charging stations, then the fire detection capability is improved, but the device complexity and space requirement increase
Solution Approach 1:
The patent merges multiple functions into a single integrated fire suppression tank system. The tank combines water storage, fire detection (via fire detection device), and water spraying capabilities in one unit. The control unit integrates fire detection signals and controls both the tank inflation and water spraying operations, simplifying the overall system while maintaining effective fire detection and suppression capabilities in the charging station environment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively detects fires and quickly submerges the electric vehicle battery with water, stabilizing the temperature and extinguishing the fire in an early stage, while also preventing fire transfer to adjacent vehicles.
Implementation Method 1
when a gas injection type multi-wall tube is inflated as air is injected therein, the opening/closing cover is automatically opened, and the inflated gas injection type multi-wall tube forms the tank to surround the vehicle from all sides
Implementation Method 2
A plurality of penetration holes are arranged on the bottom at the parking position, and each penetration hole is equipped with a spray nozzle that sprays fire-fighting water supplied through a fire-fighting conduit
Implementation Method 3
in the event of fire, the tank is filled with water, thus causing the battery of the electric vehicle to be submerged and thereby stabilized
Data Source
AI summary
A fire extinguishing tank having a fixed floor watering device for responding to a fire of an electric vehicle charging station, includes a quadrilateral frame-shaped embedded groove formed on a bottom surface at a parking position of the electric vehicle charging station to surround an entering vehicle, and a tube storage part fixedly inserted into the embedded groove. The tube storage part has a storage body in which a receiving groove having a certain width and depth is formed, a gas injection type multi-wall tube having a central hole is accommodated in the storage body, an upper opening of the storage body is opened or closed by a cover, and, when a gas injection type multi-wall tube is inflated as air is injected therein, the opening/closing cover is automatically opened, and the inflated gas injection type multi-wall tube forms the tank to surround the vehicle from all sides.